Very nice bikes indeed. I've had several opportunities to ride one, and enjoyed them very much. I do wish they would do a special edition model with metal chain guard, mudguards, et cetera, and rod-brakes, though i can imagine that would have a smaller market than the current line-up. What really appeals to me about these is that they're not a modern recreation of a vintage bike, but a bike that is still being built that way, if you follow me. I'm hoping that one day London roads will be safe enough for me to cycle to work, at which time I shall certainly be looking into one of these.
That would be neat, The Chinese have been producing these style bikes for a good while now with rod brakes ect. They look pretty cool and I almost ordered one. Their called Flying Pigeon
http://www.flying-pigeon.eu/tradicionales.htm